[PATCH] s390: kexec fixes and improvements.
Disable pseudo page fault handling before starting the new kernel and try
to use diag308 to reset the machine.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index 2721c3a..5aa71b0 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -70,6 +70,8 @@
for (;;);
}
+extern void pfault_fini(void);
+
static void
kexec_halt_all_cpus(void *kernel_image)
{
@@ -78,6 +80,11 @@
struct kimage *image;
relocate_kernel_t data_mover;
+#ifdef CONFIG_PFAULT
+ if (MACHINE_IS_VM)
+ pfault_fini();
+#endif
+
if (atomic_compare_and_swap(-1, smp_processor_id(), &cpuid))
signal_processor(smp_processor_id(), sigp_stop);